Lubricating printing plate roller of photogravure press

Abstract

The invention discloses a lubricating printing plate roller of a gravure printing machine, which belongs to the technical field of printing machines and comprises a machine body, an impressing roller is arranged in the machine body, and a mounting box is mounted on the inner side wall of the machine body. According to the scheme, the elastic air bag is arranged, in the process that the driver drives the impressing roller to rotate through the hydraulic rod, the hydraulic rod extrudes the elastic air bag through the extrusion rod, then the elastic air bag is extruded in the rotation process of the extrusion rod, and the elastic air bag is extruded in the process that the extrusion rod extrudes the elastic air bag; the air in the space, located on one side of the advancing direction of the extrusion rod, in the elastic air bag flows into the oil storage tank through the first air pipe, and lubricating oil in the oil storage tank is smeared on a rotating shaft of the impressing roller, so that the lubricating oil can be automatically added in the working process of the printing machine, and a user does not need to close the printing machine to add the lubricating oil; and the phenomenon that the impressing roller is damaged due to the fact that a user forgets to add the lubricating oil can be prevented, and the effects of improving the printing efficiency and prolonging the service life of the printing machine are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of printing presses, and more particularly to a lubricating printing plate roller of a gravure printing press. Background Art

[0002] A gravure printing press is a machine that uses a gravure plate for printing. The image and text part of the printing plate of the gravure printing press is concave, while the blank part is on the same plane as the outer circle of the printing plate cylinder.

[0003] At present, during the use of the roller printing machine, the plate roller and the impression roller need to be installed inside the printing machine first, and the plate roller and the impression roller are driven to rotate by the rotating drive device inside the printing machine. The plate roller can adhere to the printing pigment in the ink cartridge, and the plate roller and the impression roller squeeze the substrate to complete the printing process. In order to increase the stability of the impression roller during operation, it is necessary to use a fixed structure to fix the connection of the printing machine drive device of the impression roller, and the connection between the fixed structure and the impression roller is relatively tight. Therefore, the friction between the impression roller and the fixed structure is relatively large during daily rotation. During use, a certain amount of lubricating oil needs to be applied to the contact position between the impression roller and the fixed structure. However, when applying the lubricating oil to the existing printing machine, the impression roller needs to be removed, and the volume of the impression roller is large. The process of removing the impression roller is relatively complicated, and it will cause the printing machine to stop running for a long time, which not only causes a waste of manpower resources, but also affects the production efficiency of the printing machine.

[0004] In view of the above problems, some solutions have been provided in the prior art. For example, the invention application with publication number CN118107260A discloses a lubricating device for a printing plate roller of a printing press. The device can fix the embossing roller by a clamping plate and can move the lubricating oil from the inside of the oil outlet pipe and the oil outlet plate to the outside of the embossing roller, so that the embossing roller can be lubricated without being disassembled from the outside of the printing press body, and the normal use of the printing press body can be affected. Although the prior art realizes the addition of lubricating oil without disassembly, the printing press still needs to be shut down before the lubricating oil can be added, that is, the lubricating oil cannot be added by itself during use. If a large number of documents need to be printed overtime, stopping printing is likely to affect production efficiency, and when the user forgets to add lubricating oil, it is easy to cause damage to the printing press. Summary of the invention

[0005] In view of the problems existing in the prior art, the object of the present invention is to provide a lubricating printing plate roller of a gravure printing press, which can extend the service life of the printing press without the need for manual addition of lubricating oil by users.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A lubricating printing plate roller of a gravure printing machine comprises a machine body, an embossing roller is arranged in the machine body, a mounting box is mounted on the inner side wall of the machine body, a fixing block is arranged in the mounting box, an arc groove for fixing the embossing roller is opened on the fixing block, a driving assembly matched with the embossing roller is arranged on the machine body, and a lubricating assembly is arranged on the fixing block;

[0008] The lubrication assembly comprises an oil storage tank provided on the fixed block, the oil storage tank is filled with lubricating oil, the fixed block is provided with a horizontal groove, a lubrication roller is rotatably installed in the horizontal groove, a water-absorbing sponge is provided on the lubrication roller, the fixed block is provided with a lubrication groove matched with the water-absorbing sponge, a lubrication pipe connected with the oil storage tank is inserted on the side wall of the lubrication groove, and a driving assembly is provided on the installation box;

[0009] The driving assembly includes an installation box fixedly installed on the side wall of the installation box, an elastic airbag that is not connected at the head and tail is installed in the installation box, a first air pipe connected to the oil storage tank is inserted on the elastic airbag, and a recovery assembly that cooperates with the oil storage tank is provided on the fixed block.

[0010] Furthermore, the driving assembly includes a driver installed in the machine body, a hydraulic rod that cooperates with the embossing roller is fixedly installed on the output end of the driver, a connecting groove is opened on the hydraulic rod, a connecting rod that cooperates with the connecting groove is fixedly installed on the rotating shaft of the embossing roller, and an extrusion rod for extruding the elastic airbag is provided on the hydraulic rod.

[0011] Furthermore, a guide plate is provided on the fixed block, and the top wall of the guide plate is an inclined surface, a recovery groove is provided on the fixed block, a connecting groove connected to the oil storage tank is provided on the side wall of the recovery groove, a sealing rod is slidably installed in the vertical groove on the fixed block, a first spring is jointly installed between the bottom wall of the sealing rod and the fixed block, and a connecting hole connected to the connecting groove is provided on the sealing rod.

[0012] Furthermore, a magnet block is embedded in the sealing rod, an electromagnet electrically connected to the driver is embedded in the fixing block, a pressure relief groove is opened on the sealing rod, and a second air pipe connected to the pressure relief groove is inserted in the oil storage tank.

[0013] Furthermore, a heat dissipation groove is provided on the fixing block, heat dissipation holes are evenly provided on the side wall of the heat dissipation groove, and a third air pipe connected to the heat dissipation groove is inserted at one end of the elastic airbag away from the first air pipe.

[0014] Furthermore, balls are evenly embedded in the arc groove.

[0015] Furthermore, a sliding groove is provided on the side wall of the installation box, and the fixed block is slidably matched with the sliding groove, a limiting spring is installed between the fixed block and the sliding groove, a fixing plate is provided on the fixed block, a fixing groove is provided on the fixed plate, a horizontal groove is provided on the fixed block that is slidably matched with the fixed plate, a limiting plate that is matched with the fixing groove is slidably installed on the upper part of the fixed block, a second spring is installed between the limiting plate and the fixed block, and the bottom wall of the limiting plate is an inclined surface.

[0016] Furthermore, a pull rod is fixedly mounted on the limiting plate.

[0017] Furthermore, a mounting frame is fixedly mounted on the hydraulic rod, and the extrusion rod is rotationally matched with the mounting frame.

[0018] Furthermore, a refueling groove is provided on the top wall of the oil storage tank, and a plug plate is movably installed in the refueling groove.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) This solution sets an elastic airbag. When the driver drives the embossing roller to rotate through the hydraulic rod, the hydraulic rod squeezes the elastic airbag through the squeezing rod, and then squeezes the elastic airbag during the rotation of the squeezing rod. During the squeezing of the elastic airbag by the squeezing rod, the gas in the elastic airbag located in the space on the side of the forward direction of the squeezing rod flows into the oil storage tank through the first air pipe, and the lubricating oil in the oil storage tank flows to the water-absorbing sponge through the lubricating pipe and the lubricating groove, and is evenly applied to the rotating shaft of the embossing roller through the water-absorbing sponge. Therefore, the lubricating oil can be added by the user during the operation of the printing machine, without the need for the user to shut down the printing machine to add the lubricating oil. It can also prevent the user from forgetting to add the lubricating oil, which may cause damage to the embossing roller, thereby improving the printing efficiency and extending the service life of the printing machine.

[0021] (2) This solution provides a ball bearing, which can drive the ball bearing to rotate during the rotation of the embossing roller, thereby converting the sliding friction between the rotating shaft of the embossing roller and the fixed block into the rolling friction between the rotating shaft of the embossing roller and the ball bearing, thereby reducing the degree of wear between the rotating shaft of the embossing roller and the ball bearing, and increasing the contact area between the rotating shaft of the embossing roller and the air, thereby increasing the heat dissipation effect of the embossing roller, and when the squeezing rod squeezes the elastic airbag, the space of the elastic airbag located on the side away from the moving direction of the squeezing rod draws air from the heat dissipation groove through the third air pipe, and then the heat dissipation groove draws air from the outside through the heat dissipation hole, thereby accelerating the air flow rate near the ball bearing and the rotating shaft of the embossing roller, further extending the service life of the printing press;

[0022] (3) This solution sets up a recovery component. When the lubricating oil flows through the lubricating groove to the absorbent sponge, excess lubricating oil will drip onto the top wall of the guide plate and move along the guide plate to the recovery groove. Then, when printing is completed and the driver is turned off, the electromagnet is powered off, and then the first spring stretches and drives the sealing rod to move upward. During the upward movement of the sealing rod, the connecting hole is connected to the connecting groove. At this time, under the action of gravity, the lubricating oil in the recovery groove flows through the connecting groove and the connecting hole to the oil storage tank, thereby preventing the rapid loss of lubricating oil in the oil storage tank, which requires users to frequently add lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a side cross-sectional view of the fixing block, the lubrication roller and the sealing rod of the present invention;

[0025] Figure 3 For the present invention Figure 2 A in the middle shows the enlarged picture;

[0026] Figure 4 For the present invention Figure 3 Middle B shows the enlarged image;

[0027] Figure 5 For the present invention Figure 2 Middle C shows the enlarged picture;

[0028] Figure 6 It is a combined diagram of the driver, the installation box, the elastic airbag, and the fixing block of the present invention;

[0029] Figure 7 It is a cross-sectional view of the elastic airbag of the present invention.

[0030] Description of the numbers in the figure:

[0031] 1. Machine body; 2. Imprinting roller; 3. Installation box; 4. Fixing block;

[0032] 501, oil storage tank; 502, lubrication roller; 503, water-absorbing sponge; 504, lubrication groove; 505, lubrication tube; 506, installation box; 507, elastic airbag; 508, first air tube;

[0033] 601, driver; 602, hydraulic rod; 603, connecting rod; 604, extrusion rod;

[0034] 701, guide plate; 702, recovery groove; 703, connecting groove; 704, sealing rod; 705, first spring; 706, connecting hole;

[0035] 801, magnet block; 802, electromagnet; 803, pressure relief groove; 804, second air pipe;

[0036] 901, heat dissipation slot; 902, heat dissipation hole; 903, third air pipe; 904, ball bearing;

[0037] 101, limit spring; 102, fixed plate; 103, fixed slot; 104, horizontal slot; 105, limit plate; 106, second spring; 107, pull rod;

[0038] 11. Mounting frame; 12. Fuel tank; 13. Plug plate. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0040] See also Figures 1 to 7 A lubricating printing plate roller of a gravure printing machine comprises a machine body 1, an embossing roller 2 is arranged in the machine body 1, an installation box 3 is installed on the inner side wall of the machine body 1, a fixing block 4 is arranged in the installation box 3, an arc groove for fixing the embossing roller 2 is opened on the fixing block 4, a driving component matched with the embossing roller 2 is arranged on the machine body 1, and a lubricating component is arranged on the fixing block 4;

[0041] The lubrication assembly comprises an oil storage tank 501 provided on the fixed block 4, the oil storage tank 501 is filled with lubricating oil, the fixed block 4 is provided with a horizontal groove 104, a lubrication roller 502 is rotatably installed in the horizontal groove 104, the lubrication roller 502 is provided with a water-absorbing sponge 503, the fixed block 4 is provided with a lubrication groove 504 cooperating with the water-absorbing sponge 503, a lubrication pipe 505 connected with the oil storage tank 501 is inserted on the side wall of the lubrication groove 504, and a driving assembly is provided on the installation box 3;

[0042] The driving assembly includes an installation box 506 fixedly mounted on the side wall of the installation box 3, an elastic airbag 507 which is not connected at the head and tail is installed in the installation box 506, a first air pipe 508 connected to the oil storage tank 501 is inserted on the elastic airbag 507, and a recovery assembly cooperating with the oil storage tank 501 is provided on the fixed block 4.

[0043] The driving assembly includes a driver 601 installed in the body 1, and a hydraulic rod 602 that cooperates with the embossing roller 2 is fixedly installed on the output end of the driver 601. A connecting groove is opened on the hydraulic rod 602. A connecting rod 603 that cooperates with the connecting groove is fixedly installed on the rotating shaft of the embossing roller 2. The hydraulic rod 602 is provided with an extrusion rod 604 for extruding the elastic airbag 507.

[0044] When in use, the driver 601 drives the embossing roller 2 to rotate through the hydraulic rod 602, and then the substrate is placed on the top of the embossing roller 2. The movement of the embossing roller 2 and the conveyor belt drives the substrate to the middle position between the embossing roller 2 and the plate roller. The plate roller can dip the pigment in the ink cartridge during rotation, and print the pigment on the outside of the substrate under the operation of the embossing roller 2 and the plate roller, thereby completing the printing process. The hydraulic rod 602 drives the squeezing rod 604 to rotate during the rotation of the hydraulic rod 602, and then the squeezing rod 604 squeezes the elastic airbag 507 during the rotation of the squeezing rod 604. In the process of squeezing the elastic airbag 507 by the squeezing rod 604, the gas in the elastic airbag 507 located in the space on the side of the forward direction of the squeezing rod 604 The lubricating oil flows into the oil storage tank 501 through the first air pipe 508, and the pressure in the oil storage tank 501 increases. Under the action of the pressure, the lubricating oil flows into the lubricating groove 504 through the lubricating pipe 505, and flows to the absorbent sponge 503 through the lubricating groove 504. At the same time, the absorbent sponge 503 is driven to rotate during the rotation of the shaft of the embossing roller 2. Then, during the rotation of the absorbent sponge 503, the lubricating oil can be evenly applied to the shaft of the embossing roller 2. Therefore, the lubricating oil can be added by the user during the operation of the printing press, without the need for the user to shut down the printing press to add the lubricating oil. It can also prevent the user from forgetting to add the lubricating oil, which will cause damage to the embossing roller 2, thereby improving printing efficiency and extending the service life of the printing press.

[0045] like Figure 2 , Figure 3 As shown, the fixed block 4 is provided with a guide plate 701, and the top wall of the guide plate 701 is an inclined surface, the fixed block 4 is provided with a recovery groove 702, and the side wall of the recovery groove 702 is provided with a connecting groove 703 connected with the oil storage tank 501, and a sealing rod 704 is slidably installed in the vertical groove on the fixed block 4, and a first spring 705 is installed between the bottom wall of the sealing rod 704 and the fixed block 4, and a connecting hole 706 connected with the connecting groove 703 is provided on the sealing rod 704.

[0046] The sealing rod 704 is embedded with a magnet block 801 , the fixing block 4 is embedded with an electromagnet 802 electrically connected to the driver 601 , the sealing rod 704 is provided with a pressure relief groove 803 , and the oil storage tank 501 is provided with a second air pipe 804 connected to the pressure relief groove 803 .

[0047] By adopting the above technical solution, in the process of the lubricating oil flowing to the absorbent sponge 503 through the lubricating groove 504, the excess lubricating oil will drip onto the top wall of the guide plate 701 and move along the guide plate 701 to the recovery groove 702. The excess lubricating oil can be recovered, thereby reducing the waste of lubricating oil.

[0048] In the initial state, the first spring 705 is in a free extension state. Then, when the driver 601 is energized, since the electromagnet 802 is electrically connected to the driver 601, all the electromagnets 802 are energized and generate an electromagnetic field. Then, under the action of the electromagnetic field, the sealing rod 704 moves downward and squeezes the first spring 705. Then, when printing is completed and the driver 601 is turned off, the electromagnet 802 is powered off. Then, the first spring 705 extends and drives the sealing rod 704 to move upward. In the process of the sealing rod 704 moving upward, the connecting hole 706 is connected to the connecting groove 703. At this time, under the action of gravity, the lubricating oil in the recovery groove 702 flows into the oil storage tank 501 through the connecting groove 703 and the connecting hole 706, so that the lubricating oil can be recycled, and there is no need for the user to manually recover the lubricating oil in the recovery groove 702, thereby reducing the loss of lubricating oil.

[0049] As the sealing rod 704 moves upward, it drives the pressure relief groove 803 to move upward, and gradually connects with the outside world during the upward movement of the pressure relief groove 803. Then, the airflow in the oil storage tank 501 can flow to the outside world through the second air pipe 804 and the pressure relief groove 803, thereby effectively preventing the excessive pressure in the oil storage tank 501 from affecting the normal flow of the lubricating oil in the recovery tank 702 to the oil storage tank 501.

[0050] like Figure 2 , Figure 5 , Figure 6 , Figure 7 As shown, a heat dissipation groove 901 is provided on the fixing block 4 , heat dissipation holes 902 are evenly provided on the side wall of the heat dissipation groove 901 , and a third air pipe 903 connected to the heat dissipation groove 901 is inserted at one end of the elastic airbag 507 away from the first air pipe 508 .

[0051] The arc grooves are evenly embedded with balls 904 .

[0052] By adopting the above-mentioned technical scheme, the ball 904 can be driven to rotate during the rotation of the embossing roller 2, and then the sliding friction between the rotating shaft of the embossing roller 2 and the fixed block 4 can be converted into the rolling friction between the rotating shaft of the embossing roller 2 and the ball 904, thereby reducing the degree of wear between the rotating shaft of the embossing roller 2 and the ball 904, and can also increase the contact area between the rotating shaft of the embossing roller 2 and the air. Since the rotating shaft of the embossing roller 2 will generate heat during the friction with the ball 904, the heat dissipation effect of the embossing roller 2 can be increased by increasing the contact area between the rotating shaft of the embossing roller 2 and the air, thereby effectively preventing the rotating shaft of the embossing roller 2 from being deformed due to high temperature, which leads to accelerated wear of the rotating shaft of the embossing roller 2 and further extends the service life of the printing press.

[0053] During the process of the extrusion rod 604 squeezing the elastic airbag 507, the pressure in the space of the elastic airbag 507 located on the opposite side of the moving direction of the extrusion rod 604 decreases. Then, under the action of the pressure, the space of the elastic airbag 507 located on the opposite side of the moving direction of the extrusion rod 604 draws air from the heat dissipation groove 901 through the third air pipe 903, and then the heat dissipation groove 901 draws air from the outside through the heat dissipation hole 902, thereby accelerating the air flow rate near the ball 904 and the rotating shaft of the embossing roller 2, thereby further improving the heat dissipation effect of the rotating shaft of the embossing roller 2 and the ball 904.

[0054] like Figure 2 , Figure 5 , Figure 6 As shown, a slide groove is provided on the side wall of the installation box 3, and the fixed block 4 is slidably matched with the slide groove, a limit spring is installed between the fixed block 4 and the slide groove, a fixed plate 102 is provided on the fixed block 4, a fixed groove 103 is provided on the fixed plate 102, a horizontal groove 104 slidably matched with the fixed plate 102 is provided on the fixed block 4, a limit plate 105 matched with the fixed groove 103 is slidably installed on the fixed block 4, a second spring 106 is installed between the limit plate 105 and the fixed block 4, and the bottom wall of the limit plate 105 is an inclined surface.

[0055] like Figure 5 As shown, a pull rod 107 is fixedly mounted on the limiting plate 105 .

[0056] By adopting the above technical solution, before printing, the two fixed blocks 4 are first pushed to move along the slide groove and squeeze the limit spring 101, and then the output end of the hydraulic rod 602 is stretched and the connecting rod 603 on the embossing roller 2 is docked with the connecting groove. When the docking is completed, the fixed block 4 is released. At this time, the limit spring 101 stretches and drives the two fixed blocks 4 to approach each other. In the process of the two fixed blocks 4 approaching each other, the fixed plate 102 is gradually inserted into the horizontal groove 104. In the process of the fixed plate 102 being inserted into the horizontal groove 104, it gradually contacts the inclined surface of the limit plate 105 and applies a thrust to the inclined surface of the limit plate 105. Then, under the action of the thrust, the limit plate 105 moves upward and squeezes the second spring 106. When the limit plate 105 contacts the fixed groove 103, the second spring 106 stretches and drives the limit plate 1 05 is inserted into the fixing groove 103, and then the fixing block 4 is fixed under the joint action of the fixing plate 102 and the limiting plate 105. When the embossing roller 2 needs to be removed, the user can first control the hydraulic rod 602 to contract and disengage from the embossing roller 2, and then pull the limiting plate 105 upward to make the limiting plate 105 disengage from the fixing groove 103. When the limiting plate 105 is disengaged from the fixing groove 103, the user can push the two fixing blocks 4 away from each other, and then the user can remove the embossing roller 2 for replacement and maintenance. By setting a pull rod 107, when the user needs to pull the limiting plate 105, the user can drive the limiting plate 105 to move by pulling the pull rod 107, thereby facilitating the user to pull the limiting plate 105, thereby facilitating the disassembly of the embossing roller 2.

[0057] like Figure 6 As shown, a mounting frame 11 is fixedly mounted on the hydraulic rod 602 , and the extrusion rod 604 is rotatably matched with the mounting frame 11 .

[0058] By adopting the above technical solution and setting up the mounting frame 11, the extrusion rod 604 is driven to rotate during the rotation of the hydraulic rod 602, and then the extrusion rod 604 will rotate on the mounting frame 11 during the process of extruding the elastic airbag 507, thereby converting the sliding friction between the extrusion rod 604 and the elastic airbag 507 into rolling friction, thereby reducing the wear of the elastic airbag 507 and extending the service life of the elastic airbag 507.

[0059] like Figure 2 As shown, a refueling groove 12 is provided on the top wall of the oil storage tank 501 , and a plug plate 13 is movably installed in the refueling groove 12 .

[0060] By adopting the above technical solution, when it is necessary to add lubricating oil into the oil storage tank 501 , the user can pull the plug plate 13 to make the plug plate 13 disengage from the oil filling tank 12 , and then the user can add lubricating oil into the oil storage tank 501 through the oil filling tank 12 .

[0061] Instructions for use: When in use, first push the two fixed blocks 4 to move along the slide groove and squeeze the limit spring 101, then stretch the output end of the hydraulic rod 602 and make the connecting rod 603 on the embossing roller 2 dock with the connecting groove, and release the fixed block 4 after docking. At this time, the limit spring 101 stretches and drives the two fixed blocks 4 to approach each other. In the process of the two fixed blocks 4 approaching each other, the fixed plate 102 is gradually inserted into the horizontal groove 104. In the process of the fixed plate 102 being inserted into the horizontal groove 104, it gradually contacts the inclined surface of the limit plate 105 and applies a thrust to the inclined surface of the limit plate 105. Then, under the action of the thrust, the limit plate 105 moves upward and squeezes the second spring 106. When the limit plate 105 and the fixed When the fixed groove 103 contacts, the second spring 106 stretches and drives the limiting plate 105 to insert into the fixed groove 103, and then the fixed block 4 is fixed under the joint action of the fixing plate 102 and the limiting plate 105, and then the substrate is placed on the top of the embossing roller 2, and the movement of the embossing roller 2 and the conveyor belt drives the substrate to the middle position between the embossing roller 2 and the printing plate roller. The printing plate roller can dip the pigment in the ink cartridge during rotation, and print the pigment on the outside of the substrate under the operation of the embossing roller 2 and the printing plate roller, thereby completing the printing process. During the rotation of the hydraulic rod 602, the squeezing rod 604 is driven to rotate, and then the elastic airbag 507 is squeezed during the rotation of the squeezing rod 604. In the process of squeezing the elastic airbag 507 by the 604, the gas in the space on one side of the squeezing rod 604 in the elastic airbag 507 flows into the oil storage tank 501 through the first air pipe 508, and the pressure in the oil storage tank 501 increases. Under the action of the pressure, the lubricating oil flows into the lubricating groove 504 through the lubricating pipe 505, and flows to the water-absorbing sponge 503 through the lubricating groove 504. At the same time, the water-absorbing sponge 503 is driven to rotate during the rotation of the rotating shaft of the embossing roller 2. Then, during the rotation of the water-absorbing sponge 503, the lubricating oil can be evenly applied to the rotating shaft of the embossing roller 2. In the process of the lubricating oil flowing to the water-absorbing sponge 503 through the lubricating groove 504, the excess lubricating oil will drip onto the guide The sealing rod 704 moves upwards, and the connecting hole 706 is connected with the connecting groove 703 during the upward movement of the sealing rod 704. At this time, the lubricating oil in the recovery groove 702 flows into the oil storage tank 501 through the connecting groove 703 and the connecting hole 706 under the action of gravity; the ball 904 can be driven to rotate during the rotation of the embossing roller 2, and the sliding friction between the rotating shaft of the embossing roller 2 and the fixed block 4 can be converted into the rolling friction between the rotating shaft of the embossing roller 2 and the ball 904;During the squeezing process of the squeezing rod 604 squeezing the elastic airbag 507, the pressure in the space of the elastic airbag 507 on the opposite side of the squeezing rod 604 is reduced, and then under the action of the pressure, the space of the elastic airbag 507 on the opposite side of the squeezing rod 604 sucks air from the heat dissipation slot 901 through the third air pipe 903, and then the heat dissipation slot 901 sucks air from the outside through the heat dissipation hole 902, thereby accelerating the air flow rate near the ball 904 and the rotating shaft of the embossing roller 2; when the embossing roller 2 needs to be removed, the user can first control the hydraulic rod 602 to contract and disengage from the embossing roller 2, and then pull the limit plate 105 upwards to make the limit plate 105 disengage from the fixed groove 103, and when the limit plate 105 disengages from the fixed groove 103, the user can push the two fixed blocks 4 away from each other, and then the user can remove the embossing roller 2 for replacement and maintenance. ;

[0062] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lubricating printing plate roller of a gravure printing machine, comprising a machine body (1), wherein an embossing roller (2) is arranged in the machine body (1), an installation box (3) is installed on the inner side wall of the machine body (1), a fixing block (4) is arranged in the installation box (3), an arc groove for fixing the embossing roller (2) is opened on the fixing block (4), a driving component cooperating with the embossing roller (2) is arranged on the machine body (1), and a lubricating component is arranged on the fixing block (4); Features: The lubrication assembly comprises an oil storage tank (501) provided on the fixed block (4), the oil storage tank (501) being filled with lubricating oil, a horizontal groove (104) provided on the fixed block (4), a lubrication roller (502) being rotatably mounted in the horizontal groove (104), a water-absorbing sponge (503) being provided on the lubrication roller (502), a lubrication groove (504) being provided on the fixed block (4) and cooperating with the water-absorbing sponge (503), a lubrication pipe (505) being connected with the oil storage tank (501) being inserted on the side wall of the lubrication groove (504), and a driving assembly being provided on the installation box (3); The driving assembly comprises an installation box (506) fixedly mounted on the side wall of the installation box (3), an elastic air bag (507) which is not connected at the end to the end is installed in the installation box (506), a first air pipe (508) connected to the oil storage tank (501) is inserted into the elastic air bag (507), and a recovery assembly cooperating with the oil storage tank (501) is provided on the fixed block (4).

2. The lubricating printing plate roller of a gravure printing press according to claim 1, characterized in that: The driving assembly comprises a driver (601) installed in a machine body (1); a hydraulic rod (602) matched with an embossing roller (2) is fixedly installed on the output end of the driver (601); a connecting groove is provided on the hydraulic rod (602); a connecting rod (603) matched with the connecting groove is fixedly installed on the rotating shaft of the embossing roller (2); and an extrusion rod (604) for extruding an elastic airbag (507) is provided on the hydraulic rod (602).

3. The lubricating printing plate roller of a gravure printing press according to claim 2, characterized in that: The fixed block (4) is provided with a guide plate (701), and the top wall of the guide plate (701) is an inclined surface. The fixed block (4) is provided with a recovery groove (702), and the side wall of the recovery groove (702) is provided with a connecting groove (703) connected with the oil storage groove (501). A sealing rod (704) is slidably installed in the vertical groove on the fixed block (4), and a first spring (705) is installed between the bottom wall of the sealing rod (704) and the fixed block (4). The sealing rod (704) is provided with a connecting hole (706) connected with the connecting groove (703).

4. The lubricating printing plate roller of a gravure printing press according to claim 3, characterized in that: The sealing rod (704) is embedded with a magnet block (801), the fixed block (4) is embedded with an electromagnet (802) electrically connected to the driver (601), the sealing rod (704) is provided with a pressure relief groove (803), and the oil storage tank (501) is inserted with a second air pipe (804) connected to the pressure relief groove (803).

5. The lubricating printing plate roller of a gravure printing press according to claim 4, characterized in that: The fixing block (4) is provided with a heat dissipation groove (901), the side wall of the heat dissipation groove (901) is evenly provided with heat dissipation holes (902), and a third air pipe (903) connected to the heat dissipation groove (901) is inserted into the end of the elastic air bag (507) away from the first air pipe (508).

6. The lubricating printing plate roller of a gravure printing press according to claim 5, characterized in that: Rolling balls (904) are evenly embedded in the arc-shaped grooves.

7. The lubricating printing plate roller of a gravure printing press according to claim 6, characterized in that: A sliding groove is provided on the side wall of the installation box (3), and the fixed block (4) is slidably matched with the sliding groove, a limit spring (101) is installed between the fixed block (4) and the sliding groove, a fixed plate (102) is provided on the fixed block (4), a fixed groove (103) is provided on the fixed plate (102), a horizontal groove (104) slidably matched with the fixed plate (102) is provided on the fixed block (4), a limit plate (105) matched with the fixed groove (103) is slidably installed on the upper side of the fixed block (4), a second spring (106) is installed between the limit plate (105) and the fixed block (4), and the bottom wall of the limit plate (105) is an inclined surface.

8. The lubricating printing plate roller of a gravure printing press according to claim 7, characterized in that: A pull rod (107) is fixedly mounted on the limiting plate (105).

9. The lubricating printing plate roller of a gravure printing press according to claim 8, characterized in that: A mounting frame (11) is fixedly mounted on the hydraulic rod (602), and the extrusion rod (604) is rotationally matched with the mounting frame (11).

10. The lubricating printing plate roller of a gravure printing press according to claim 8, characterized in that: A refueling groove (12) is provided on the top wall of the oil storage tank (501), and a plug plate (13) is movably installed in the refueling groove (12).

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